Results 61 to 70 of about 19,802 (239)
Simple in-system control of microphone sensitivities in an array [PDF]
Journal of Sensors and Sensor SystemsA method to perform measurements of microphone responses directly in the array of a sensor system is described. It can be applied in reverberant environments and does not require high instrumentation effort.
A. Ivanov
doaj +1 more source
Direct measurement of quantum phase gradients in superfluid 4He flow
, 2007 We report a new kind of experiment in which we generate a known superfluid velocity in a straight tube and directly determine the phase difference across the tube's ends using a superfluid matter wave interferometer. By so doing, we quantitatively verify
Aditya Joshi +11 more
core +1 more source
Microphone Array Speech Processing [PDF]
EURASIP Journal on Advances in Signal Processing, 2010 1Department of Electrical and Computer Engineering, Curtin University of Technology, Perth, WA 6845, Australia 2College of Engineering & Computer Science, The Australian National University, Canberra, ACT 0200, Australia 3 Institute of Physics, Signal Processing Group, University of Oldenburg, 26111 Oldenburg, Germany 4 School of Engineering, Bar-Ilan ...
Nordholm, Sven +5 more
openaire +4 more sources
The Bitter Taste of Brazil's Temporary Import Ban on Robusta Coffee
Agribusiness, EarlyView.ABSTRACT Brazil, a leading Robusta coffee producer and exporter, faced a significant drought in 2016–2017, which drastically reduced production and depleted stocks. Consequently, Brazil temporarily permitted the import of one million 60‐kg bags of Robusta coffee in the spring 2017. An import ban was imposed shortly afterward due to lobbying by domestic
Hanifi Otgun +2 more
wiley +1 more source
L-infinity Norm Design of Linear-phase Robust Broadband Beamformers using Constrained Optimization
, 2013 A new method for the design of linear-phase robust far-field broadband beamformers using constrained optimization is proposed. In the method, the maximum passband ripple and minimum stopband attenuation are ensured to be within prescribed levels, while ...
Nongpiur, R. C., Shpak, D. J.
core +1 more source
Advanced Intelligent Discovery, EarlyView.Flexible tactile sensors have considerable potential for broad application in healthcare monitoring, human–machine interfaces, and bioinspired robotics. This review explores recent progress in device design, performance optimization, and intelligent applications. It highlights how AI algorithms enhance environmental adaptability and perception accuracy
Siyuan Wang +3 more
wiley +1 more source
Complexity, 2018 Single-microphone speech enhancement algorithms by using nonnegative matrix factorization can only utilize the temporal and spectral diversity of the received signal, making the performance of the noise suppression degrade rapidly in a complex ...
Dong-xia Wang +4 more
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Context Awareness and Human–Robot Interaction Optimization for Museum Intelligent Guide Robot
Advanced Intelligent Systems, EarlyView.This study presents a context‐aware human–robot interaction framework designed for intelligent museum guide robots. The system features a three‐layer architecture—perception, understanding, and behavior execution—that enables adaptive and meaningful interactions with museum visitors.
Anna Zou, Yue Meng, Shijing Tong
wiley +1 more source
Laser-Based Command Injection Attacks on Voice-Controlled Microphone Arrays
Transactions on Cryptographic Hardware and Embedded SystemsVoice-controlled (VC) systems, such as mobile phones and smart speakers, enable users to operate smart devices through voice commands. Previous works (e.g., LightCommands) show that attackers can trigger VC systems to respond to various audio commands ...
Hetian Shi +5 more
doaj +1 more source
Advances in Electrical and Computer Engineering, 2013 A microphone clustering and back propagation (BP) neural network based acoustic source localization method using distributed microphone arrays in an intelligent meeting room is proposed.
CHEN, Z., ZHANG, Q., YIN, F.
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